ST72F63 STMICROELECTRONICS [STMicroelectronics], ST72F63 Datasheet - Page 122

• Manufacturer Part Number: ST72F63
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST7263B
14.2 THERMAL CHARACTERISTICS
Notes:
1. The power dissipation is obtained from the formula P
and P
2. The average chip-junction temperature can be obtained from the formula T
122/132
PORT
Symbol
T
R
P
Jmax
thJA
is the port power dissipation determined by the user.
D
Package thermal resistance (junction to ambient)
Power dissipation
Maximum junction temperature
1)
Ratings
D
=P
2)
INT
+P
PORT
where P
SDIP32
SO34
J
= T
INT
A
is the chip internal power (I
+ P
D
x RthJA.
Value
150
500
60
75
°C/W
DD
Unit
mW
°C
xV
DD
)